Article Text
Statistics from Altmetric.com

You do not have access to the full text of this article, the first page of the PDF of this article appears above.
Footnotes
Contributors JF provided the main effort. PK and ZT supported the finalisation of the ideas and refined the content.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent for publication Not required.
Provenance and peer review Not commissioned; externally peer reviewed.
Request Permissions
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.